Schiff Base Synthesis from Furfural and Phenylhydrazine

Oct 13, 2025 by pynkocean.com 1 views

Schiff Base Synthesis Results from Phenylhydrazine Condensation with Furfural from Corn Cobs and Their Use as Inhibitors of Zinc Metal Corrosion (Zn)

Introduction

The development of new compounds with potential applications in various fields, such as medicine and material engineering, is an essential aspect of organic chemistry. One of the methods used to synthesize new compounds is the Schiff base synthesis, which involves the condensation of primary amines with carbonyl compounds. In this study, we investigated the synthesis of Schiff bases through the condensation of phenylhydrazine with furfural obtained from corn cobs and their use as inhibitors of zinc metal corrosion (Zn).

Schiff Base Synthesis from Furfural and Phenylhydrazine

Schiff base synthesis is carried out through a condensation reaction between furfural obtained from corn cobs with phenylhydrazine. The results of this furfural are analyzed using the FT-IR spectroscopy, which indicates the presence of vibration peak C = O in the area of about 1674 cm-1. Furthermore, furfural is condensed by phenylhydrazine through the reflux method in ethanol solvents for one hour. Of the 9.6 grams (0.1 mol) furfural obtained, condensed with 5.4 grams (0.05 mol) phenylhidrazine, producing 10.54 grams (67.02%) Schiff base. FT-IR analysis of this Schiff base shows the vibration of C = N in the area around 1597 cm-1.

Characterization and Analysis of Schiff Base

The characterization of the synthesized Schiff base using FT-IR spectroscopy provides valuable information about the molecular structure and interactions that occur during the synthesis process. The presence of vibration peaks C = O and C = N indicates the formation of the Schiff base structure. The efficiency of the Schiff base as a corrosion inhibitor in zinc metal in 0.1 N HCl solution is tested, with the result showing the largest efficiency value at a concentration of 7000 ppm, which is 78.47%. As for furfural and phenylhydrazine at the same concentration, efficiency is obtained at 58.18% and 50.04%.

Effectiveness of Corrosion Inhibitors

Metal corrosion is a serious problem that can cause damage and failure of metal structure. Corrosion inhibitors, such as Schiff bases resulting from this study, have the potential to prevent or slow down the corrosion process. The test results show that Schiff base has high inhibitory efficiency (78.47%) at a concentration of 7000 ppm, making it a promising candidate for industrial applications. Lower efficiency of furfural and phenylhydrazine of 58.18% and 50.04% shows that the structure of condensation compounds has an important role in increasing the ability of corrosion inhibition.

Potential Utilization of Natural Resources

The use of corn cobs as a source of primary amine in this synthesis shows the potential for the use of agricultural waste into valuable material. This not only contributes to reducing waste, but also provides an environmentally friendly alternative to the production of useful chemical compounds.

Conclusion

This study succeeded in producing Schiff bases through furfural condensation obtained from corn cobs with phenylhidrazine. The results show that Schiff base has the potential as an effective corrosion inhibitor for zinc metal. By continuing to develop an efficient and environmentally friendly synthesis method, and explore the potential of natural resources, we can create sustainable solutions for challenges in the chemical and material industries.

Future Directions

The results of this study provide a promising direction for the development of new corrosion inhibitors using natural resources. Future studies can focus on optimizing the synthesis method to increase the efficiency of the Schiff base, as well as exploring the potential of other natural resources as primary amines. Additionally, the study of the mechanism of corrosion inhibition by Schiff bases can provide valuable insights into the development of new corrosion inhibitors.

Recommendations

Based on the results of this study, we recommend the following:

Further optimization of the synthesis method to increase the efficiency of the Schiff base.
Exploration of the potential of other natural resources as primary amines.
Study of the mechanism of corrosion inhibition by Schiff bases.
Development of new corrosion inhibitors using natural resources.

Limitations

This study has several limitations, including:

The use of a limited number of samples for the corrosion inhibition test.
The lack of detailed analysis of the mechanism of corrosion inhibition by Schiff bases.
The limited exploration of the potential of other natural resources as primary amines.

Future Research Directions

Future research directions can focus on:

Optimizing the synthesis method to increase the efficiency of the Schiff base.
Exploring the potential of other natural resources as primary amines.
Studying the mechanism of corrosion inhibition by Schiff bases.
Developing new corrosion inhibitors using natural resources.

Conclusion

In conclusion, this study has demonstrated the potential of Schiff base synthesis from furfural obtained from corn cobs with phenylhydrazine as a corrosion inhibitor for zinc metal. The results show that Schiff base has high inhibitory efficiency at a concentration of 7000 ppm, making it a promising candidate for industrial applications. By continuing to develop an efficient and environmentally friendly synthesis method, and exploring the potential of natural resources, we can create sustainable solutions for challenges in the chemical and material industries.
Q&A: Schiff Base Synthesis Results from Phenylhydrazine Condensation with Furfural from Corn Cobs and Their Use as Inhibitors of Zinc Metal Corrosion (Zn)

Q: What is Schiff base synthesis?

A: Schiff base synthesis is a method of synthesizing new compounds by condensing primary amines with carbonyl compounds. In this study, we investigated the synthesis of Schiff bases through the condensation of phenylhydrazine with furfural obtained from corn cobs.

Q: What is the significance of this study?

A: This study demonstrates the potential of using natural resources, such as corn cobs, as a source of primary amines for the synthesis of Schiff bases. The results show that the synthesized Schiff base has high inhibitory efficiency as a corrosion inhibitor for zinc metal.

Q: What is the mechanism of corrosion inhibition by Schiff bases?

A: The mechanism of corrosion inhibition by Schiff bases is not fully understood and requires further study. However, it is believed that the Schiff base molecules interact with the metal surface, forming a protective layer that prevents corrosion.

Q: What are the limitations of this study?

A: This study has several limitations, including the use of a limited number of samples for the corrosion inhibition test, the lack of detailed analysis of the mechanism of corrosion inhibition by Schiff bases, and the limited exploration of the potential of other natural resources as primary amines.

Q: What are the potential applications of this study?

A: The results of this study have potential applications in the development of new corrosion inhibitors for various industries, such as oil and gas, automotive, and construction.

Q: How can the efficiency of the Schiff base be improved?

A: The efficiency of the Schiff base can be improved by optimizing the synthesis method, exploring the potential of other natural resources as primary amines, and studying the mechanism of corrosion inhibition by Schiff bases.

Q: What are the environmental benefits of using natural resources as primary amines?

A: The use of natural resources, such as corn cobs, as primary amines has several environmental benefits, including reducing waste, conserving resources, and providing an environmentally friendly alternative to traditional methods of synthesis.

Q: What are the future directions of this research?

A: Future research directions can focus on optimizing the synthesis method, exploring the potential of other natural resources as primary amines, studying the mechanism of corrosion inhibition by Schiff bases, and developing new corrosion inhibitors using natural resources.

Q: How can the results of this study be applied in industry?

A: The results of this study can be applied in industry by developing new corrosion inhibitors for various industries, such as oil and gas, automotive, and construction. Additionally, the study of the mechanism of corrosion inhibition by Schiff bases can provide valuable insights into the development of new corrosion inhibitors.

Q: What are the potential risks and challenges associated with the use of natural resources as primary amines?

A: The potential risks and challenges associated with the use of natural resources as primary amines include the variability of the quality of the natural resources, the potential for contamination, and the need for careful processing and handling.

Q: How can the efficiency of the corrosion inhibition be improved?

A: The efficiency of the corrosion inhibition can be improved by optimizing the synthesis method, exploring the potential of other natural resources as primary amines, and studying the mechanism of corrosion inhibition by Schiff bases.

Q: What are the potential applications of this study in the development of new materials?

A: The results of this study have potential applications in the development of new materials, such as coatings, adhesives, and composites, that can provide improved corrosion resistance and durability.

Q: How can the results of this study be applied in the development of new technologies?

A: The results of this study can be applied in the development of new technologies, such as coatings, adhesives, and composites, that can provide improved corrosion resistance and durability. Additionally, the study of the mechanism of corrosion inhibition by Schiff bases can provide valuable insights into the development of new technologies.